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230689568657268 = 2232718313701135089
BaseRepresentation
bin110100011100111110011001…
…110010110000111101110100
31010020210201002200102002200100
4310130332121302300331310
5220214104214034013033
62134345154054114100
766406525364623440
oct6434763162607564
91106721080362610
10230689568657268
1167560995495896
1221a5922594b930
139b94c189b40c6
1440d7612b4d820
151ba0b7225c513
hexd1cf99cb0f74

230689568657268 has 144 divisors (see below), whose sum is σ = 666985610753280. Its totient is φ = 65857021056000.

The previous prime is 230689568657267. The next prime is 230689568657279. The reversal of 230689568657268 is 862756865986032.

230689568657268 is a `hidden beast` number, since 2 + 30 + 6 + 8 + 9 + 5 + 6 + 8 + 6 + 572 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230689568657267) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1707618268 + ... + 1707753356.

It is an arithmetic number, because the mean of its divisors is an integer number (4631844519120).

Almost surely, 2230689568657268 is an apocalyptic number.

230689568657268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

230689568657268 is an abundant number, since it is smaller than the sum of its proper divisors (436296042096012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230689568657268 is a wasteful number, since it uses less digits than its factorization.

230689568657268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140638 (or 140633 counting only the distinct ones).

The product of its (nonzero) digits is 12541132800, while the sum is 81.

The spelling of 230689568657268 in words is "two hundred thirty trillion, six hundred eighty-nine billion, five hundred sixty-eight million, six hundred fifty-seven thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 1831 3662 3701 5493 7324 7402 10986 11103 12817 14804 16479 21972 22206 25634 25907 32958 33309 38451 44412 51268 51814 65916 66618 76902 77721 103628 115353 133236 135089 153804 155442 230706 233163 270178 310884 405267 461412 466326 540356 810534 932652 945623 1215801 1621068 1891246 2431602 2836869 3782492 4863204 5673738 6776531 8510607 11347476 13553062 17021214 20329593 27106124 34042428 40659186 47435717 60988779 81318372 94871434 121977558 142307151 189742868 243955116 247347959 284614302 426921453 494695918 499964389 569228604 742043877 853842906 989391836 999928778 1484087754 1499893167 1707685812 1731435713 1999857556 2226131631 2968175508 2999786334 3462871426 3499750723 4452263262 4499679501 5194307139 5999572668 6925742852 6999501446 8904526524 8999359002 10388614278 10499252169 13999002892 15582921417 17998718004 20777228556 20998504338 31165842834 31497756507 41997008676 62331685668 62995513014 125991026028 915434796259 1830869592518 2746304388777 3661739185036 5492608777554 6408043573813 8238913166331 10985217555108 12816087147626 16477826332662 19224130721439 25632174295252 32955652665324 38448261442878 57672392164317 76896522885756 115344784328634 230689568657268